Consider circle C with diameter DE. The equation of circle C is () 2 + () 2 =.

If 8 adult smartphone users are randomly selected, find the probability that at least 4 of them use their smartphones in meetings or classes.

Four times a number added to 3 times a larger number is 31. Seven subtracted from the larger number is equal to twice the smaller number. Let x represent the smaller number and y represent the larger number.

3 people work full time together on a project, but their total time on the project is to be equivalent to only 1 person working full time. 1 person worked 1/2 the time, a second person worked 1/3rd of her time.

The population of a village in 2006 was 2400. In 2010 the populations as decreased by 12%. What was the population of the village in 2010?

A rectangular prism is 10 meters long 4 meters wide and 5 meters tall what is its volume

The surface area of a cube is 864 in. 2. Find the volume of the cube

Write an expression that says "Nine plus a number times 14"

A pitcher fruit punch holds 2 gallons. If 9 people share the entire pitcher equally, how much punch does each person get?

If I have 50 pencils that cost $10 how much is each pencil and what's the formula

Arrange and write the integers in increasing order 57,24,-87,-11